Table 3. Mean numbers of particular cell types in tears during the positive SLKCR and PBS control challenge (n=23).

	Before the challenge	After the challenge (h)
		½	1	1½	2	3	4	5	6	7	8	9	10	11	12	24	28
Eosinophils
SLKCR	0.5	0.5	0	0	2	2	4*	4*	3.5*	4*	3*	0	0	0	0	0.5	0.5
PBS	0.5	0	0	0	0	0	0.5	0	0	0	0	0	0	0	0	0.5	0
Neutrophils
SLKCR	0.5	0	0	0	0	0	1	3*	4*	4*	5*	4*	2	2	0	0	0
PBS	0	0	1	0	0	0	0	0	1	0	0	0	0	1	0.5	0.5	0
Basophils
SLKCR	0	0	0	0.2	0	0.4*	1*	1.5*	0	0	0	0	0	0	0	0	0
PBS	0	0	0	0	0	0	0	0	0	0	0.3	0	0	0	0	0	0
Conjunctival EC
SLKCR	0.5	0	0	0	0	0	0	0	0	3*	3*	3*	3.2*	1	0	1	0
PBS	0	0	0	0	0	0	0	0	0	0	1	0	0	0	1	0	1
Goblet cells
SLKCR	0	0	0	0	0	0	0	0	0.2	0.4*	0.5*	0	0	0	0	0	0
PBS	0	0	0	0	0	0	0	0	0	0	0	0	0.2	0	0	0	0
Corneal EC
SLLCR	0	0	0	0	0	0	0	0	0	0	0	0.3*	0	0	0	0	0
PBS	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Abbreviations: EC, epithelial cells; PBS, phosphate-buffered saline; SLKCR, secondary late keratoconjunctival response.

Significance with respect to the baseline (before the challenge): *P<0.05.